GEO2-STROKE

engine exhaust filter; engine exhaust gas catalytic converter; automotive parts, namely, exhaust filters and catalytic converters; emission reduction units for motors and engines, namely catalytic converters and exhaust filters; emission reduction units for after-market installation, namely exhaust filters and catalytic converters; emission reduction units for installation on new vehicles, namely, exhaust filters and catalytic converters; ceramic honeycomb substrates for use in exhaust filters; ceramic honeycomb substrates for use in catalytic converters; porous ceramic substrates for use in filtration and catalytic conversion as parts of exhaust filters and catalytic converters